Is my boyfriend (29M) pursuing an acting career just to cheat on me? (28F)

I am a [28 F] and my boyfriend is a [29M] we have been in a relationship for 5 years .

So my boyfriend decided a few years ago to start acting. I have a lot of friends in theater, and have been able to go to them for advice.

We had been dating 4 years before he got into acting and he’s always been SUPER jealous (I’m not the jealous type) and me being around men is like a big deal for him unless he knows them.

so anyway; he starts at this acting school and tells me that a part of the acting process is doing intimate work with your partners, and this includes other women. He tells me that he usually doesn’t do any stuff, and it’s just a kiss on the lips or whatever. We establish my firm boundaries on what he can and cannot do.

We end up breaking up because he ended up having a secret emotional affair with some girl, and when i found out he said i “wouldn’t understand” because acting is intimate and that they were figuring out their feelings for eachother. She was married.

Fast forward, and i end up asking to break it off for a few months cus im freaked out and need space. We end up taking a few months off and eventually come back together. In this time he has already gone on dates with multiple girls at his school, which is interesting because he said it’s about the work….

A few weeks after seeing eachother he tells me one day that he has been inviting his “scene partners” over to rehearse, and he rehearses in his apartment with them. Apparently, the scenes are literally pretending to date and kiss and have sx. He did a “scene” where he made out with a girl and sucked on her bobs, and felt her up. But it was just acting…

is this normal? i think i know the answer? has anyone else had this experience?